Sorry, but of course that's his point. The movies are, for a start, derivative; additionally, in my opinion, they're crap --as they have very little in common with the works of J. R. R. Tolkien. That these are better known (if that is actually the case) is a travesty, both for fans of literature, & for The Tolkien Estate --as they are a catastrophic misrepresentation of the literature they derive from.

This in itself is not (or does not need to be) particularly important to you or me --but it is for a the heirs of J. R. R. Tolkien, whose job it is to preserve & share the literature (& its "message", whatever that may be) that Tolkien left the world. I suggest to you that Christopher thinks Jackson has made a poor job of this.